Flying cutting device for cutting strip metal



F. J. con

FLYING CUTTING DEVCE FOR CUTTING STRIP METAL Filed July 2,' 1943 5 Sheets-Sheet l F. J. waan M5935 FLYING CUTTING DEVICE FOR CUTTING STRIP METAL Filed July 2I 1943 ,3^Sheets-Sheet 2 HNVENTQR .1x1 'fi 1:

ATTRNEY Fo 49 E470 F' J. MOODV I 5 FLYING CUTTING DEVICE Rox CUTTING STRIP METAL Filed July 2, 1943 5 Sheets-Sheet 3 5159. 5

ATTORNEY Patented eh, d, 19g

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Application July 2, 1943, Serial No. 493,200

ing cutting devices for cutting strip metal. bar

stock, and the like while in motion.

The principal objects of my invention are to provide a novel form of flying shear so arranged as to shear a plurality of individual strips of metal passing therethrough in side by-side relationship, or to shear one strip while another strip, to one side of the strip which is being sheared, passes through the shear, or to shear a single strip of a width substantially equal to the combined widths of the strips passing through the shear in side by side relationship.

A further object of my invention is to provide a shear of the type wherein the shearing blades travel with the metal during shearing, which is so arranged that shearing of the metal may be effected while the shear and metal are in motion or while the shear and metal are stationary,and which will independently shear individual strips in side by side'relation. l

A more specicobject of my invention is to provide a flying shear of the up-cut type having a novel supporting arrangement for a pair of upper shearing knives mounted in side by side relation', including means for independently moving either of said knives out of the` path of 'travel of the metal through the shear, and including tion, arranged for cropping the ends of the strip metal passing from the delivery end of a leveler;

e (C11.l 164-49) Figure 6 is a fragmentary longitudinal sectional view taken through the shear,` showing the position of the shear at the beginning of the shearing operation;

Figure '7 is a fragmentary detail longitudinal sectional view somewhat similar to Figure 6 but showing the shear at the completion of the shearing operation;

Figure 8 is a detail fragmentary longitudinal sectional view taken through the shear, showing one of the upper shear blades raised out of the path of travel of the metal through the shear;

Figure 9 is a view somewhat similar to Figure 8 with certain other parts shown in section than Figure 2 is an enlarged plan view of the device i shown in. Figure 1, with certain parts broken away; .Figure 3 is an enlarged transverse sectional in Figure 8; and

Figure 10 is a diagrammatic view showing the valves and piping connections therefrom, which control movement of the upper shear blades out of the path of travel of the metal through the shear.

In the drawings a shear lll is shown at the delivery end of a leveler I I, for cropping the tail end of the strip as it leaves said leveler and passes to a pickling or other processing device. Said shear may, however, be used for shearing the stitched ends of the strip or for shearing the strip to length as the pickling or other processing operation is completed, if desired.

The leveler II includes a plurality of leveling rolls I2, l2 disposed above and below the path of travel oi the metal therethrough. As herein shown, two strips of metal I3, I3 are shown as passing through the leveler in side by side relationship, and opposite sides of the metal are adapted to be engaged and reversely bent and straightened as it passes from a coil box I4. Said coil box supports the coiled strip metal inside by side relationship, for unwinding in a well known manner, so isgnot herein shown or described in detail. A pair of vertically spaced power driven pinch rolls I5, I5 are provided at the entering end of said leveler, for engaging opposite sides of the metal and uncoiling it and pushing it through said leveler rolls I2, I?, which are also power driven. From said leveler rolls the metal passes along a supporting platform I6, extending view taken through the shear shown in Figures 1 substantially along line 5-5 of Figure 3;

beyond thev delivery end of said leveler, to a position adjacent the entering end of the shear I0.

The metal passes from said platform through said shear, to and througha pinch roll stand I1. I at 'the discharge end of said shear. The rolls of l 3 of my invention is herein shown as being an upcut flying shear and includes a shear frame 2| journaled on a transversely extending shaft 22,

gagement with the metal passing through said shear. Said shear frame is of an open formation including a pair of parallel spaced side frame members 26, 26 journaled on said shaft and projecting upwardly and downwardly therefrom. A cross frame .member 21 connects the lower ends of said side frame members together. Said cross frame member has a bracket 29 projecting upwardly from the transverse center thereof, which forms a bearing support for said transverse shaft between the cranks 24, 24. The upper ends of said parallel spaced sides of said shear frame are connected together by means of a cross frame member 36. Said cross frame member is substantially of an inverted L-shaped formation in cross section, one of its legs extending acrossthe top of said frame and its other leg extending downwardly along the side of said frame opposite the inside of said shear frame, extends from.

each side frame member 26 of said shear frame, in a direction towards the levelei` ii. Each of said longitudinal guides has .a block 33 slidably guided therein. Said blocks are journaled on the ends of cranl 34, 34, on the outer ends of a, transverse shaft 35, which is journaled intermediate its ends on spaced bearing brackets 36, 36, projecting upwardly from the base for said shear frame. Said transverse shaft and cranks are driven from a spur gear 31 mounted thereon, which meshes with and is driven from a spur gear 39, on the inner end of a transverse shaft 40. The transverse shaft 40 is driven from a motor 4| which also serves as a drive means for the leveler .I I. transverse shaft includes alongitudinal shaft `42 driven from said motor through a coupling 43. Said longitudinal shaft has driving connection with a variable speed transmission 44 through a coupling 45. Said transmission may vbe of a type having self locking gearing therein,.

The drive from said motor to said meshing with a spur gear 66, keyed on the end of said shaft (see Figure 2i. 'nie spur gear 6l is herein shown as being in the form of a fly wheel with a portion cut away so that the mass thereof is eccentric of the center of rotation of `said gear, to exert an impelling force on the crdsshead 41 and shear blade .'25 during the upward/strokes thereof. A flywheel 51 is keyed on the opposite end of said shaft: Said fly wheel l likewise has its mass formed eccentric of its center and serves the same purpose as the y wheel formed by said spur 'gear 66.

The inner sides of the lower shear blades 26, 25 are adapted to register with pair of upper shear blades 59, 459, which are held stationary during the shearing operation. Said stationary shear blades are mounted in side by side relation on the lower ends of blade supporting frames 60, 6D,.which are pivotally mounted in said shear frame in side by side relation on aligned transverse shafts 6I, 6I (see Figure 3). The inner end of each of said transverse -shafts is lournaled in a depending lug 63, depending from the upper cross frame member 30. The opposite end ofV each of said shafts is journaled in and projects beyond its respective side frame member 26 and has a lever arm 64 secured thereto, which projects from said shaft in a direction towards the leveler n (see Figures 1, 6 and fn. A piston ro'd' 65 is pivotally connected to the free end of each lever arm by means of a pivotal pin 66. Said piston rod is extensible from a cylinder 61, transverseiy pivoted at its lower end between a pair of spaced lugs 69,69, spaced outwardly from and projecting rearwardly of the side 26 of the shear a frame 2l, and herein shown as being formedintegral therewith. A suitable piston (not shown) is provided within said cylinder so that when fluid under pressure is admitted to the piston rod end of said cylinder, the shear blade supporting frame will be held stationary. in -positive engagement with the vertical leg of the cross frame member 30, and when fluid under pressure is admitted to the head end of said cylinder, said shear blade will be pivoted in an upward direction out of position to be registered with the movable shear blade '25, as it moves in an upward direction. so

" the strip metal will continuously pass through relationship, for independent pivotal movement with respect to each-other, either frame may be shaft 40 at a speed which will cause the shear A frame to move at the speed of travel of the strip, and has drive connection with said shaft 40 through a coupling 46. y

The shear blade 25 is mounted in a crosshead 41 having opposite outwardly opening channelled ends 49, 49, which are guided on bearing blocks 50, 50, mounted on the insides of the upright -sides 26, 26 of the shear frame 2i, and extending vertically therealong (see Figure 5). Said crosshead is moved along said bearing blocks by means yof a pair of spaced connecting rods 5i, 5|, connected thereto by means of pivotal pins 52, 52. Said connecting rods are iournaled on their lower ends on the cranks 24. 24, formed integral with the transverse shaft 22.

The transverse shaft 22 is driven from a motor 64, through a spur gear train including al pinion raised about the axis of the respective shaft 6i at will, to permit one strip to be sheared while the other strip passes through the shear, or both frames may be locked in a lowered position, to permit the shearing of a plurality 0f strips at the same time. I

The admission and release of fluid under pressure to or from the head or piston rod ends of the cylinders 61, 61 is controlled by means of a pair of valves 69, 6l. Said valves may be of any wellknown form and are each connected with the head and piston rod ends of an associated cylinder 61, by pressure lines 12 and 1l, respectively, to provide means for independently moving either of the upper shear blades 69, 59 out of the path of travel of the metal through the shear, and for positively holding said shear bladespin a stationary operative position during the shearing operation. A fluid storage tank (not shown) is provided for the return fluid, and

, a suitable pump (not shown) is provided to supply fluid under pressure to said valves and cylinders.

A roller l@ is mounteon each blade suppori.'V and the arrangement ing frame 6d for .vertical yieldable movement with respect thereto. Said rollers are adapted tc engage the upper surface of the metal during the shearing operation and hold the metal in engagement with the lower shearblade 25. As herein shaft ll, which is journaled at -its ends in the depending sides of a U-frame '73. Said U-frame is mounted on the lower ends of a pair o'f spaced bolts lil, lt, slidably mounted vin a. rearwardly projecting portion lof said blade supporting frame. Compression springs "i8, i6 encircle said bolts and are inter ased between the upper side of said U-frame andthe under portion of said rearwardly projecting portion of said bladesupporting frame, to urge said U-frame and the roller l@ into a-lowered position, to cause said roller to yieldably engage the upper surface of the metal. A deector ll projects rearwardly from said U- frame and is shown as being formed integrally with opposite sides thereof. Said delector isl inclined at an upwardly inclined angle from the roller, to deflect the leading end of the metal beneath said roller, when thevmetal is being pushed through said shear.

During the shearing operation, when it is desired to shear a pair of strips of metal in side by side relation, the blade supporting frames '66, 6@ are pivotally moved to aV position against the insides oi the horizontal legs of the cross frame members Bil, d and are held rigidly thereagainst by iiuid under pressure. Power is then applied to the transverse shaft t0 through the variable speed transmission d'6, to drive said shaft. The

motor dit is started at vthe Sametime, to rotaty ably drive the cranks 26, 2li and move the lower shear blade upwardly to .register along the ad- `Vance faces ofthe upper shear blades 59, 59, and

with no interruption as the blade is lowered.

When two strips of metal are passing through the shearin side by side relationship and it is desired to shear one strip of metal only, one of the blade supporting frames is pivoted upwardly about'its axis of connection to the shear frame, to move its blade 59 out of registry with the movable shear blade 25, as shown in Figures 8 and 9,

thus permitting the metalwhich isvnot being sheared, to pass continuously through the shear during shearing of the other strip of metal.

In shearing when thestrip is not in motion, the shear frame is moved into a vertical position by the cranks 36, 3Q and blocks 33, 33 engaging the guides 32,' ,32. Said frame is'then held in said position by means of said blocks and cranks and the self-locking gearing in the variable speed transmission QS. Power is then applied to the motor 5d to move the knife 25 upwardly in the shear frame 2i, to engage the underside of the metal and shear itlagainst the stationary knife 59, as in Figure 7. l

While I have herein shown and described one form in which my invention may be embodied, it

will vbe understood that the construction thereof Yaardgas Y construed as limiting my invention tothe spe shown, each roller l0 is mounted on a transverse cic embodiment illustrated, execepting as it may be limited in the appended claims.

I claim as my invention: l. A flying shear for strip metal shear frame, a shearing blade mounted irl-'said shear frame above the path oitravel of the metal upper-shear blade-on said shear frame to permit said shear blade to be moved out of registry with said movable shear blade, andpowermeans having operative connection with'fsaid upper 'shearv blade and manually controllableto hold said shearblade in a stationary position for shearing, and to pivotally move said shear blade out of the path of travel of the metal through said shear.

2. A ilying shear' for strip metal including a shear frame pivoted for movement about an axis extending transversely of the materialit isde through said shear, a movable shearing blade sired to cut and movable therewith during the shearing operation, a shearing blademount'ed'in said frame above the path of the material movable upwardly along said frame to a position registering with said rst mentioned shearing blade for cutting the material'passing through said shear, a pivotal mounting for said rst' mentioned shear blade on' said shear frame, topermit said shear blade to ber moved out of registry with said movable shear blade, means for holding said upper shear blade stationary with respect to said shear frame during shearing or for pivoting said shear blade out of a shearing position, power means for moving said movable shear blade along said frame to ee'ct shearing, and independent power means lfor pivotally moving said shear frame in the direction of and at the speed of travel of the strip through said shear, to eiect shearing during continuous movement of the strip through said shear, said means being adapted to hold said shear frame in a stationary upright position, .to permit shearingl when'the'` strip is not in motion.

3. A ilying shear for strip metal including. a shear 'frame pivoted for movement about an axis extending transversely of the material it is desired` to Vcut and movable therewith during the shearing operation, a shearing blade disposed above the path of the metal .through said shear and adapted to be stationary during the shearing operation, a shearing blade movable upwardly along said frame to a position registering with tive connection with said upper shear blade and D manually controllable to hold said shear blade in a stationary position with respect to said shear Afraine' iorshearingand to pivotally move said the various parts may be ,altered without departing from the spirit and scope thereof. Furthermore, I donut-wish to be including a ,shear blade and roller' out of the path of travel oi the-metal through said shear.

v4f. A flying shear for strip metal comprising a shear frame pivoted for movement about an axis extending transversely of the material it is' metal through said shear, a'shear blade mounted in said shear frame for vertical movement therealong, means for positively moving said movable shear blade upwardly along said frame in registty with the advance faces of said rst mentioned shear blades, for shearing a plurality of strips as they pass through said shear in side, by side relation. and means selectively operable for moving any of said ilrst. mentioned shear blades out of the path of travel of the strip through said shear, to permit shearing of one strip 'passing through said shear beside another strip, without shearing said other strip.

5. A flying shear ior strip metal comprising a shear frame pivoted for movement about an vaxis extending transversely oi' the material it is desired to cut and movable .therewith during the shearing operation, a plurality of shear blades mounted in said frame in side by side relation and disposed above the path of travel of the strip metal through said shear, a shear blade mounted in said shear frame for vertical movement thereguisos.

' ,extending in side by siderelation and disposed above thev path o! travel of the strip metal through said shear, a shear blade movable upwardly along said frame for registering with the advance faces of said iirst mentioned shear blades and' shearing the strip as it passes through said shear; and means permitting the shearing of a pair of. strips in side by side relation, or the shearingof a .single strip while another strip for each of said upper shear blades, and independently operable power means having connection with said pivotal mountings, for positivelyholding either of said upper shear blades from pivotal movement during shearing and for along, means for positively moving said movable i shear blade upwardly along said frame in registry with the advance faces of said upper shear blades, for shearing the strip as it .passes therethrough, means for mounting each of said first pivotally moving eitheroi said shear blades out of the path of travel ofthe material through said as it passes through said shear. a shear blade movable upwardly along said frame forregistering with the advance faces of said first mentioned shear blades and shearing the strip as it passes through said shear. means permitting the shearing of a plurality of strips in side by side` relation or permitting the'4 shearing of a single strip while another strip beside said single strip passes through said shear including a separate transverse pivotal mounting for each oi said upper shear blades on said shear frame, independently operable power means having connection with said pivotal mountings, for positively holding each of said upper shear blades from pivotal movement during shearing and for moving either of said'shear blades and rollers out of the path of travel of the material through said shear. and

ing through said shear beside another strip, without shearing said other strip. f

6. A dying-shear for strip metal comprising a shear frame pivoted for movement about an axis extending transversely of the material it is desired to cut and movable therewith during the shearing operation, means for positively moving said shear frame with the strip about said pivotal axis during the shearing operation, a plurality of shear blades extending 'in side by side relation andmounted in said shear frame above thepath of travel of the strip metal through said shear. ashear blade movable upwardly along said frame for registering with the advance faces of said first mentioned shear blades vfor' shearing .the

strip as it passes through said shear, and means.

permitting the shearing of a plurality of strips passing through said shear in sidey by side rela'` shear frame pivoted for movement about an axis extendlngitransversely oi the material it is desired to cut and movable therewith during the shearing operation, a plurality of shear blades means for yieldably engaging said rollers with the upper surface of the metal during shearing and for holding said rollers in engagement with the metal after the shearing operation, to hold the metal in engagement with the upper surface of said movable shear blade as it passes through the shear, to facilitate the uninterrupted passage posed adjacent the upper ends oi said blade supporting frames, a .shear blade mounted in the lower portion of each of said iramesand adapted to remain stationary during the shearing operation, a movable shear blade vertically slidably mounted in said shear frame for shearing registry with said rst mentioned shearblades, and separate power means having operative connection with each of said blade 4support- .ing' frames and independently operableto swing..

said frames and the shear blades mounted thereon away from said movable shear blade, to move either of said first mentioned lshear blades out of shearing position and to permit the uninterrupted travel of one strip through said shear durl f asiasas .upper end of said shear frame for pivotal movement about a transverse axis disposed adjacent their upper ends, a shear blade mounted 4in each of said blade supporting frames and adapted to remain stationary during the shearing op l0 eration, a movable shear blade slidably mounted in said shear frame for shearing registry with said stationary shear blades, power means having operative connection with said blade supporting frames and independently operable to swing said frames and the shear blades mounted thereon awayl from said'movable blades, to render eitherV of said stationary blades inoperative for shearing and to permit the uninterrupted travel of the strip 'through said shear, a transversely 20 extending roller mounted in each -oi' said blade supporting frames in advance of the shear `blades carried thereby, and yieldable means urging said rollersinto engagement With the upper surface of the strip when said blade supporting frames '5 are in a shearing position, and to maintaink said rollers in engagement with the strip during the shearing operation, to provide an uninterrupted travel of the strip through said shear.

l1. A flying shear for strip metal includinga "shear frame, a pair of blade supporting frames Vmounted in side by side relation adjacentthe upper end of said shear frame for pivotal movement about a transverse axis disposed adjacent the upper end of said frame, a shear blade mounted in each of said frames and adapted to remain stationary during the shearing operation, a movable shear blade vertically slidably mounted in said shear frame for shearing registry with the advance faces of said first mentioned shear 40 blades, a lever arm projecting outwardly from each of said blade supporting frames, and a separate iiuid pressure cylinder and piston having operative connection with each of said lever arms, for holding said blade supporting frames es in a shearing position during the shearing operation, or for rocking either of said frames to a position to move the shear blades mounted thereon out of. the path of travel of the metal through said shear, so a, pair of strips may be sheared in side by side relation, or so a single strip may be shearedwhile another strip. passes vthrough the shear.

l2. A ying shear for strip m'etal including aj shear frame, a pair of blade supporting frames mounted in side by side relation adjacent the upper end ofsaid shear fra-me for pivotal movement about coamal transverse axes disposed adjacent their upper ends, a shear blade mounted' in each of said frames and adapted to remain so stationary during the shearing operation, a movable shear blade mounted in said shear frame for vertical movement therealong into shearing reg--l istry with the advance lfaces of said stationary shear blades, la separate lever arm projecting as vfrom each of said blade supporting frames, ay

separate uid pressure cylinder and piston havingoperativeconnection witheach of said lever arms, for holding said blade supporting frames in a shearing position, 4or for locking either oi said `7oirames in a'position so the shear blades mounted. thereon are out of the path of travel of the metal through said shear, so apair ofA strips may be sheared in side by side relation, or so a single A through the shear, a transversely extending roller mounted in each oi' said blade supporting frames, and yieldable means for urging saidrollers in a direction to engage the upper surfaceof .the strip l when said` blade supporting frames are in a shearing position, and to maintain said rollers in engagement with the strip during the shearing operation, to provide an uninterrupted travel of the strip through said shear.

13. A flying shear .for strip metal including a A shear frame pivoted for movement about an axis extending transversely oi the material it is desired to cut and movable therewith about said axis during the shearing operation, a shearing blade mounted in said frame and adapted to be held stationary with respect to said frame during the shearing operation, a movable shear blade movable towards and fromsaid stationary' shear blade to register with said stationary shear blade for cuttingthe material passing through said shear, a pivotalmount'ing for said stationary shear blade on said shear frame, power means for positively holding said stationary shear blade stationary with respect to said frame during the cutting operation -and selectively operable to move said shear blade out of the path of travel of the metal through said shear independently of movement of said movable shear blade, power means for moving said movable shear blade along said frame to 'edect shearing, and independent power means for pivotally moving said shear frame in the direction of and at the speed of travel of the' strip through said shear, said means being adapted to h old saidshear frame in a stationary upright position, the strip is not in motion.

la. A flying shear for strip metal including a shear frame pivoted for movement about an -axis extending transversely of the material it is desired to cut and movable therewith about said axis during the shearing operation, a shearing blade adapted to be held stationary with respect to said shear frame during the 'shearing operation, a movable shearing blade movable towards said ilrst mentioned shearing blade to a position registering with said blade, for shearing .the strip metal passing through said shear, a, pivotaly mounting for said stationary shear blade, to per mit said shear blade to be moved lout of the path of travel of the metal through said shear, independently of movement of said movable shear blade, a roller in advance of said stationary shear shearingposition, and power meanshaving operative connection with said stationary shear blade and manually' controllable to hold said shear blade in a stationary position i'or shearing and selectively 'operable to move said shear blade and roller'out of the path of travel of the metal through said shear. 4 l5. A ying shear for strip metal including a shear frame.- a plurality oi shear blades adapted lto be held stationary with respect to said shear frame during shearing and mounted in said frame in side by side relation for pivotal movement about coaxial transverse axes, a movable shear blade movable towards and from said rst mentioned shear blades 4for shearing registry with said first-mentioned shear blades, and separate power means having operative connection with each of said stationary shear blades and independently operable'to move said blades out of the path of travel of the metal through said to permit shearing when Q 1,413,325 il 1 ,i 12

sheer independently of movement of said mov- 1 able blade,A to move either of said first mentioned A .REFERENCES I shear blades out of shearing psition and t0 Del'- i The following referexces are of record in the mit the uninterrupted travel of one strip through me of this patent: Said shear during the operation of shearing another strip passing through said shear. STATES 24mm FRANK J. WOOD'. Number 4 Name Date A 'y `173,561 George Nov. l, 1904 1.9395433 Smlhmans A118'. 7, 1934 1,973,515 Talbot Sept. 11, 1934 v2,351,868 'Morgan June 20, 1944 

